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/**
* Vimperator-Plugin
* @see http://vimperator.g.hatena.ne.jp/voidy21/20100119/1263907211
* @see http://vimperator.g.hatena.ne.jp/nokturnalmortum/20100120/1263927707
* @see http://vimperator.g.hatena.ne.jp/teramako/20100221/1266774716
* @require _libly.js
*/
let U = liberator.plugins.libly.$U;
/**
* create a function for replacing
* tabbrowser.addTab or browser.loadURIWithFlags method
* to the function.
* @param {Boolean} isAddTab either for tabbrowser.addTab or not
* @return {Function}
*/
function createAround(isAddTab){
/**
* replaced function
* @param {Function} wrappedOriginalFunction
* @param {arguments} args the arguments for original function
*/
return function openerAround(wrappedOriginalFunction, args){
let url = args[0], uri;
try {
uri = getRedirectedURL(util.createURI(url));
args[0] = uri.spec;
} catch(e){
liberator.echoerr(e);
}
if (!(uri && jump(uri))){
if (isAddTab){
let tab = wrappedOriginalFunction();
if (!("_around" in tab))
tab.linkedBrowser._around = U.around(tab.linkedBrowser,
"loadURIWithFlags",
createAround(false));
return tab;
}
return wrappedOriginalFunction();
}
return tabs.getTab();
};
}
/**
* @param {String} msg
*/
function echomsg(msg){
liberator.echomsg(NAME + ": " + msg, 2);
}
/**
* if already the aURI is opened in the tabs,
* selected the tab and return true
* or else
* return false
* @param {nsIURI} aURI
* @param {Boolean}
*/
function jump(aURI){
if (aURI.schemeIs("about"))
return false;
for (let [i, browser] in tabs.browsers){
if (browser.currentURI.equals(aURI)){
echomsg("jumping to " + i + ": " + aURI.spec);
tabs.select(i);
return true;
}
}
return false;
}
/**
* if aURI is "URL Shortener" host,
* returns true or else returns false
* @param {nsIURI} aURI
* @return {Boolean}
*/
function isShortenURLHost(aURI){
switch(aURI.host){
case "bit.ly":
case "j.mp":
case "goo.gl":
case "ff.im":
case "ow.ly":
case "tinyurl.com":
case "tumblr.com":
return true;
default:
return false;
}
}
/**
* @param {nsIURI} aURI
* @return {nsIURI} either a redirected URI or an URI of the arugments
*/
function getRedirectedURL(aURI){
if ((aURI.schemeIs("http") || aURI.schemeIs("https")) && isShortenURLHost(aURI)){
let x = new XMLHttpRequest;
x.open("HEAD", aURI.spec, false);
x.send(null);
echomsg(aURI.spec + " -> " + x.channel.URI.spec);
return x.channel.URI;
}
return aURI;
}
function init(){
onUnload();
let tabbrowser = getBrowser();
tabbrowser._around = U.around(tabbrowser, "addTab", createAround(true));
for (let [,browser] in tabs.browsers){
browser._around = U.around(browser, "loadURIWithFlags", createAround(false));
}
}
init();
/**
* called before the script is reloaded
*/
function onUnload(){
let tabbrowser = getBrowser();
if ("_around" in tabbrowser){
tabbrowser._around.restore();
delete tabbrowser_around
}
for (let [,browser] in tabs.browsers){
if ("_around" in browser){
browser._around.restore();
delete browser_around
}
}
}
// vim: sw=2 ts=2 et:
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